Voice Security; Power Management; Quality Of Service (Qos) - Cisco 9971 Deployment Manual

Voice Security

The Cisco Unified IP Phone 9971 supports the following voice security features.
Image authentication
•
Device authentication
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File authentication
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Signaling authentication
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Secure Cisco Unified SRST
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Media encryption (SRTP)
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Signaling encryption (TLS)
•
Certificate authority proxy function (CAPF)
•
Secure profiles
•
Encrypted configuration files
•
Settings Access (can limit user access to configuration menus)
•

Power Management

The Cisco Unified IP Phone 9971 primarily is in active mode, so the radio will always be on.
However, power save protocols such as U-APSD or PS-POLL can be utilized for off-channel scanning or when using
Coexistence (802.11b/g + Bluetooth).
An AC adapter is required to configure the 9971 for wireless LAN mode.
Wireless LAN is automatically disabled temporarily if Ethernet is active.

Quality of Service (QoS)

Quality of Service enables queuing to ensure high priority for voice traffic. To implement appropriate queuing for voice traffic,
use the following suggestions:
Ensure that WMM is enabled on the access point.
•
Create a QoS policy on the access point giving priority to voice (RTP), video and call control (SIP) traffic and apply
•
that profile to the desired interfaces.
Traffic Type
Voice
Video
Call Control
Be sure that RTP packets have the proper QoS markings and other protocols are not using the same QoS markings.
•
Select the "Platinum" QoS profile for the voice wireless LAN when using Cisco Unified Wireless LAN Controller
•
technology and set the 802.1p tag to "6".
Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide
DSCP 802.1p
EF (46) 5
AF41 (34) 4
CS3 (24) 3
WMM UP
6
5
4
17